Author(s) :
Zhang Tao
;
Sun YuYing
;
Zheng JianMin
;
Cheng ZhiJun
;
Jiang KaiFeng
;
Yang Li
;
Cao YingJiang
;
You ShuMei
;
Wan JianMin
;
Zheng JiaKui
Author Affiliation :
Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences/Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture, Deyang 618000, China.
Author Email :
zhen6102@126.com
,
yszht@163.com
,
105683744@qq.com
,
jianminxingzheng@yeah.net
Journal article
:
Acta Agronomica Sinica
2014
Vol.40
No.12
pp.2070-2080
ref.32
Abstract :
Leaf
senescencesenescenceSubject Category: Natural Processes
see more details induces degradation of chlorophyll and other macromolecules, reducing leaf photosynthetic capacity. This process is accompanied by the accumulation of reactive oxygen species (ROS), the decreasing of cell antioxidant enzyme (SOD, CAT, and APX) activity, and the increasing of aging related gene (SAG) expression, leading in early maturity and yield reduction. Therefore, studies on the genetic mechanism and gene function of premature senescence in
ricericeSubject Category: Commodities and Products
see more details, has the important effect and significance in genetic improvement of rice. PLS2 from space radiation mutation breeding project showed leaf senility, at booting stage. Compared with the wild type, in PLS2 the photosynthetic capacity decreased, the
plant heightplant heightSubject Category: Properties
see more details, internode and panicle length shortened, tiller and effective tiller number reduced, number of grains per ear and seed setting rate were significantly lower, 1000-grain weight decreased, main panicle was stunted and grain-filling was not full. CAT activity decreased significantly in
leavesleavesSubject Category: Anatomical and Morphological Structures
see more details, H
2O
2 accumulated, and the number of dead cell increased, chloroplast structures in leaves were worse, with more starches grains and osmiophilic granules.
DarkdarkSubject Category: Properties
see more details treatment accelerated mutant leaf senescence, chloroplast ultrastructure was spheroidized. Using implicit localization population derived from PLS2/Shuhui 527 and PLS2/02428 the
pls2 was located between markers RM14704 (8 674 283 bp) and SL-I-5 (8 758 394 bp) on chromosome 3, with physical distance of 84.11 kb, including 14 genes in the interval. Sequencing result showed that C was replaced with T in the position of 41 base pair of the ninth extron of
LOC_Os03g15840 leading to an exchange of Arg (R) is replaced by Cys(C).
LOC_Os03g15840 coding a glycosyl transferase (GTs) may be the candidate gene of
pls2. These results provide a foundation for the further gene cloning and functional analysis of
pls2.
ISSN :
0496-3490
URL :
http://www.chinacrops.org
Record Number :
20153028575
Publisher :
Science Press
Location of publication :
Beijing
Country of publication :
China
Language of text :
Chinese
Language of summary :
English
Indexing terms for this abstract:
Organism descriptor(s) :
Oryza sativaoryza sativaSubject Category: Organism Names
see more details
Descriptor(s) :
catalasecatalaseSubject Category: Chemicals and Chemical Groups
see more details, cell ultrastructurecell ultrastructureSubject Category: Miscellaneous
see more details, chloroplastschloroplastsSubject Category: Anatomical and Morphological Structures
see more details, crop yieldcrop yieldSubject Category: Properties
see more details, darkdarkSubject Category: Properties
see more details, DNA sequencingdna sequencingSubject Category: Techniques, Methodologies and Equipment
see more details, enzyme activityenzyme activitySubject Category: Properties
see more details, enzymesenzymesSubject Category: Chemicals and Chemical Groups
see more details, genetic analysisgenetic analysisSubject Category: Techniques, Methodologies and Equipment
see more details, genetic mappinggenetic mappingSubject Category: Techniques, Methodologies and Equipment
see more details, hydrogen peroxidehydrogen peroxideSubject Category: Chemicals and Chemical Groups
see more details, internodesinternodesSubject Category: Anatomical and Morphological Structures
see more details, leavesleavesSubject Category: Anatomical and Morphological Structures
see more details, mutantsmutantsSubject Category: Miscellaneous
see more details, mutationsmutationsSubject Category: Miscellaneous
see more details, nucleotide sequencesnucleotide sequencesSubject Category: Chemicals and Chemical Groups
see more details, paniclespaniclesSubject Category: Anatomical and Morphological Structures
see more details, photosynthesisphotosynthesisSubject Category: Natural Processes
see more details, plant heightplant heightSubject Category: Properties
see more details, ricericeSubject Category: Commodities and Products
see more details, seed setseed setSubject Category: Natural Processes
see more details, seed weightseed weightSubject Category: Properties
see more details, senescencesenescenceSubject Category: Natural Processes
see more details, starch granulesstarch granulesSubject Category: Anatomical and Morphological Structures
see more details, tillerstillersSubject Category: Anatomical and Morphological Structures
see more details, yield componentsyield componentsSubject Category: Miscellaneous
see more details
Identifier(s) :
carbon assimilation, carbon dioxide fixation, darkness, DNA sequences, nucleotide sequence analysis, nucleotide sequencing, paddy
Broader term(s) :
OryzaoryzaSubject Category: Organism Names
see more details, PoaceaepoaceaeSubject Category: Organism Names
see more details, PoalespoalesSubject Category: Organism Names
see more details, commelinidscommelinidsSubject Category: Organism Names
see more details, monocotyledonsmonocotyledonsSubject Category: Organism Names
see more details, angiospermsangiospermsSubject Category: Organism Names
see more details, SpermatophytaspermatophytaSubject Category: Organism Names
see more details, plantsplantsSubject Category: Organism Names
see more details, eukaryoteseukaryotesSubject Category: Organism Names
see more details